1 /**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
7 * Permission to use, copy, modify and distribute this software and its *
8 * documentation strictly for non-commercial purposes is hereby granted *
9 * without fee, provided that the above copyright notice appears in all *
10 * copies and that both the copyright notice and this permission notice *
11 * appear in the supporting documentation. The authors make no claims *
12 * about the suitability of this software for any purpose. It is *
13 * provided "as is" without express or implied warranty. *
14 **************************************************************************/
18 //_________________________________________________________________________
20 //*-- Yves Schutz (SUBATECH)
21 // Reconstruction class. Redesigned from the old AliReconstructionner class and
22 // derived from STEER/AliReconstructor.
24 // --- ROOT system ---
26 // --- Standard library ---
28 // --- AliRoot header files ---
30 #include "AliPHOSQualAssDataMaker.h"
31 #include "AliESDEvent.h"
32 #include "AliESDCaloCluster.h"
33 #include "AliPHOSReconstructor.h"
34 #include "AliPHOSClusterizerv1.h"
35 #include "AliPHOSTrackSegmentMakerv1.h"
36 #include "AliPHOSPIDv1.h"
37 #include "AliPHOSTracker.h"
38 #include "AliRawReader.h"
39 #include "AliPHOSTrigger.h"
40 #include "AliPHOSGeometry.h"
41 #include "AliPHOSRecoParam.h"
42 #include "AliPHOSRecoParamEmc.h"
43 #include "AliPHOSRecoParamCpv.h"
44 #include "AliPHOSDigit.h"
45 #include "AliPHOSTrackSegment.h"
46 #include "AliPHOSEmcRecPoint.h"
47 #include "AliPHOSRecParticle.h"
48 #include "AliPHOSRawDecoder.h"
49 #include "AliPHOSRawDigiProducer.h"
50 #include "AliPHOSPulseGenerator.h"
52 ClassImp(AliPHOSReconstructor)
54 Bool_t AliPHOSReconstructor::fgDebug = kFALSE ;
55 AliPHOSRecoParam* AliPHOSReconstructor::fgkRecoParamEmc =0; // EMC rec. parameters
56 AliPHOSRecoParam* AliPHOSReconstructor::fgkRecoParamCpv =0; // CPV rec. parameters
58 //____________________________________________________________________________
59 AliPHOSReconstructor::AliPHOSReconstructor() :
64 if (!fgkRecoParamEmc) {
65 AliWarning("The Reconstruction parameters for EMC nonitialized - Used default one");
66 fgkRecoParamEmc = AliPHOSRecoParamEmc::GetEmcDefaultParameters();
69 if (!fgkRecoParamCpv) {
70 AliWarning("The Reconstruction parameters for CPV nonitialized - Used default one");
71 fgkRecoParamCpv = AliPHOSRecoParamCpv::GetCpvDefaultParameters();
74 fGeom = AliPHOSGeometry::GetInstance("IHEP","");
77 //____________________________________________________________________________
78 AliPHOSReconstructor::~AliPHOSReconstructor()
84 //____________________________________________________________________________
85 void AliPHOSReconstructor::Reconstruct(TTree* digitsTree, TTree* clustersTree) const
87 // 'single-event' local reco method called by AliReconstruction;
88 // Only the clusterization is performed,; the rest of the reconstruction is done in FillESD because the track
89 // segment maker needs access to the AliESDEvent object to retrieve the tracks reconstructed by
90 // the global tracking.
92 AliPHOSClusterizerv1 clu(fGeom);
93 clu.SetInput(digitsTree);
94 clu.SetOutput(clustersTree);
96 clu.Digits2Clusters("deb all") ;
98 clu.Digits2Clusters("") ;
101 //____________________________________________________________________________
102 void AliPHOSReconstructor::FillESD(TTree* digitsTree, TTree* clustersTree,
103 AliESDEvent* esd) const
105 // This method produces PHOS rec-particles,
106 // then it creates AliESDtracks out of them and
107 // write tracks to the ESD
109 AliPHOSTrackSegmentMaker *tsm = new AliPHOSTrackSegmentMakerv1(fGeom);
110 tsm->GetQualAssDataMaker()->Init(AliQualAss::kTRACKSEGMENTS) ;
111 AliPHOSPID *pid = new AliPHOSPIDv1(fGeom);
112 pid->GetQualAssDataMaker()->Init(AliQualAss::kRECPARTICLES) ;
114 // do current event; the loop over events is done by AliReconstruction::Run()
116 tsm->SetInput(clustersTree);
118 tsm->Clusters2TrackSegments("deb all") ;
120 tsm->Clusters2TrackSegments("") ;
122 tsm->GetQualAssDataMaker()->SetData(tsm->GetTrackSegments()) ;
123 tsm->GetQualAssDataMaker()->Exec(AliQualAss::kTRACKSEGMENTS) ;
125 pid->SetInput(clustersTree, tsm->GetTrackSegments()) ;
128 pid->TrackSegments2RecParticles("deb all") ;
130 pid->TrackSegments2RecParticles("") ;
132 pid->GetQualAssDataMaker()->SetData(pid->GetRecParticles()) ;
133 pid->GetQualAssDataMaker()->Exec(AliQualAss::kRECPARTICLES) ;
135 // PLEASE FIX IT. SHOULD GO TO ALIRECONSTRUCTION !!
136 // if ( eventNumber == gime->MaxEvent()-1 ) {
137 // fTSM->GetQualAssDataMaker()->Finish(AliQualAss::kTRACKSEGMENTS) ;
138 // fPID->GetQualAssDataMaker()->Finish(AliQualAss::kRECPARTICLES) ;
141 // This function creates AliESDtracks from AliPHOSRecParticles
143 // writes them to the ESD
145 TClonesArray *recParticles = pid->GetRecParticles();
146 Int_t nOfRecParticles = recParticles->GetEntries();
149 esd->SetNumberOfPHOSClusters(nOfRecParticles) ;
150 esd->SetFirstPHOSCluster(esd->GetNumberOfCaloClusters()) ;
152 AliDebug(2,Form("%d rec. particles, option %s",nOfRecParticles,GetOption()));
155 //#########Calculate trigger and set trigger info###########
158 // tr.SetPatchSize(1);//create 4x4 patches
161 Float_t maxAmp2x2 = tr.Get2x2MaxAmplitude();
162 Float_t maxAmpnxn = tr.GetnxnMaxAmplitude();
163 Float_t ampOutOfPatch2x2 = tr.Get2x2AmpOutOfPatch() ;
164 Float_t ampOutOfPatchnxn = tr.GetnxnAmpOutOfPatch() ;
166 Int_t iSM2x2 = tr.Get2x2SuperModule();
167 Int_t iSMnxn = tr.GetnxnSuperModule();
168 Int_t iCrystalPhi2x2 = tr.Get2x2CrystalPhi();
169 Int_t iCrystalPhinxn = tr.GetnxnCrystalPhi();
170 Int_t iCrystalEta2x2 = tr.Get2x2CrystalEta();
171 Int_t iCrystalEtanxn = tr.GetnxnCrystalEta();
173 AliDebug(2, Form("Trigger 2x2 max amp %f, out amp %f, SM %d, iphi %d ieta %d", maxAmp2x2, ampOutOfPatch2x2, iSM2x2,iCrystalPhi2x2, iCrystalEta2x2));
174 AliDebug(2, Form("Trigger 4x4 max amp %f , out amp %f, SM %d, iphi %d, ieta %d", maxAmpnxn, ampOutOfPatchnxn, iSMnxn,iCrystalPhinxn, iCrystalEtanxn));
176 Int_t iRelId2x2 []= {iSM2x2+1,0,iCrystalPhi2x2,iCrystalEta2x2};// PHOS modules in order to calculate AbsId need to be 1-5 not 0-4 as returns trigger.
178 Int_t iRelIdnxn []= {iSMnxn+1,0,iCrystalPhinxn,iCrystalEtanxn};// PHOS modules in order to calculate AbsId need to be 1-5 not 0-4 as returns trigger.
180 TVector3 pos2x2(-1,-1,-1);
181 TVector3 posnxn(-1,-1,-1);
182 fGeom->RelToAbsNumbering(iRelId2x2, iAbsId2x2);
183 fGeom->RelToAbsNumbering(iRelIdnxn, iAbsIdnxn);
184 fGeom->RelPosInAlice(iAbsId2x2, pos2x2);
185 fGeom->RelPosInAlice(iAbsIdnxn, posnxn);
187 TArrayF triggerPosition(6);
188 triggerPosition[0] = pos2x2(0) ;
189 triggerPosition[1] = pos2x2(1) ;
190 triggerPosition[2] = pos2x2(2) ;
191 triggerPosition[3] = posnxn(0) ;
192 triggerPosition[4] = posnxn(1) ;
193 triggerPosition[5] = posnxn(2) ;
195 TArrayF triggerAmplitudes(4);
196 triggerAmplitudes[0] = maxAmp2x2 ;
197 triggerAmplitudes[1] = ampOutOfPatch2x2 ;
198 triggerAmplitudes[2] = maxAmpnxn ;
199 triggerAmplitudes[3] = ampOutOfPatchnxn ;
201 //esd->SetPHOSTriggerCells(triggerPosition);
202 esd->AddPHOSTriggerPosition(triggerPosition);
203 esd->AddPHOSTriggerAmplitudes(triggerAmplitudes);
205 //######################################
208 const Float_t kBigShort = std::numeric_limits<short int>::max() - 1;
209 const Float_t nsec100 = 1e9*100.; // units of 0.01 ns
210 const Float_t gev500 = 500.; // units of GeV/500
212 for (Int_t recpart = 0 ; recpart < nOfRecParticles ; recpart++) {
213 AliPHOSRecParticle * rp = dynamic_cast<AliPHOSRecParticle*>(recParticles->At(recpart));
216 // Get track segment and EMC rec.point associated with this rec.particle
217 AliPHOSTrackSegment *ts = static_cast<AliPHOSTrackSegment *>(tsm->GetTrackSegments()->At(rp->GetPHOSTSIndex()));
219 // Get the clusters array
220 TBranch *emcbranch = clustersTree->GetBranch("PHOSEmcRP");
222 AliError("can't get the branch with the PHOS EMC clusters !");
225 TObjArray *emcRecPoints = new TObjArray(100) ;
226 emcbranch->SetAddress(&emcRecPoints);
227 emcbranch->GetEntry(0);
229 AliPHOSEmcRecPoint *emcRP = static_cast<AliPHOSEmcRecPoint *>(emcRecPoints->At(ts->GetEmcIndex()));
230 AliESDCaloCluster *ec = new AliESDCaloCluster() ;
233 for (Int_t ixyz=0; ixyz<3; ixyz++)
234 xyz[ixyz] = rp->GetPos()[ixyz];
236 AliDebug(2,Form("Global position xyz=(%f,%f,%f)",xyz[0],xyz[1],xyz[2]));
238 //Create digits lists
239 Int_t digitMult = emcRP->GetDigitsMultiplicity();
240 Int_t *digitsList = emcRP->GetDigitsList();
241 Short_t *amplList = new Short_t[digitMult];
242 Short_t *timeList = new Short_t[digitMult];
243 Short_t *digiList = new Short_t[digitMult];
246 TBranch *branch = digitsTree->GetBranch("PHOS");
248 AliError("can't get the branch with the PHOS digits !");
251 TClonesArray *digitsArr = new TClonesArray("AliPHOSDigit",100);
252 branch->SetAddress(&digitsArr);
255 // Convert Float_t* and Int_t* to Short_t* to save memory
256 for (Int_t iDigit=0; iDigit<digitMult; iDigit++) {
257 AliPHOSDigit *digit = static_cast<AliPHOSDigit *>(digitsArr->At(digitsList[iDigit]));
259 (Short_t)(TMath::Min(digit->GetEnergy()*gev500,kBigShort)); // Energy in units of GeV/500
261 (Short_t)(TMath::Min(digit->GetTime()*nsec100,kBigShort)); // time in units of 0.01 ns
262 digiList[iDigit] = (Short_t)(digit->GetId());
267 Int_t *primInts = emcRP->GetPrimaries(primMult);
268 Short_t *primList = new Short_t[primMult];
269 for (Int_t ipr=0; ipr<primMult; ipr++)
270 primList[ipr] = (Short_t)(primInts[ipr]);
272 // fills the ESDCaloCluster
275 ec->SetPosition(xyz); //rec.point position in MARS
276 ec->SetE(rp->Energy()); //total particle energy
277 ec->SetClusterDisp(emcRP->GetDispersion()); //cluster dispersion
278 ec->SetPid (rp->GetPID()) ; //array of particle identification
279 ec->SetM02(emcRP->GetM2x()) ; //second moment M2x
280 ec->SetM20(emcRP->GetM2z()) ; //second moment M2z
281 ec->SetNExMax(emcRP->GetNExMax()); //number of local maxima
282 ec->SetEmcCpvDistance(-1); //not yet implemented
283 ec->SetClusterChi2(-1); //not yet implemented
284 ec->SetM11(-1) ; //not yet implemented
287 TArrayS arrayAmpList(digitMult,amplList);
288 TArrayS arrayTimeList(digitMult,timeList);
289 TArrayS arrayIndexList(digitMult,digiList);
290 ec->AddDigitAmplitude(arrayAmpList);
291 ec->AddDigitTime(arrayTimeList);
292 ec->AddDigitIndex(arrayIndexList);
294 //Distance to the nearest bad crystal
295 ec->SetDistanceToBadChannel(emcRP->GetDistanceToBadCrystal());
297 //Array of MC indeces
298 TArrayS arrayPrim(primMult,primList);
299 ec->AddLabels(arrayPrim);
301 //Array of tracks uncomment when available in future
302 //TArrayS arrayTrackMatched(1);// Only one track, temporal solution.
303 //arrayTrackMatched[0]= (Short_t)(matchedTrack[iClust]);
304 //ec->AddTracksMatched(arrayTrackMatched);
306 // add the track to the esd object
307 esd->AddCaloCluster(ec);
316 AliTracker* AliPHOSReconstructor::CreateTracker(AliRunLoader* /* runLoader */) const
318 // creates the PHOS tracker
319 return new AliPHOSTracker();
322 void AliPHOSReconstructor::ConvertDigits(AliRawReader* rawReader, TTree* digitsTree) const
324 // Converts raw data to
326 // Works on a single-event basis
330 AliPHOSRawDecoder dc(rawReader);
331 TString option = GetOption();
332 if (option.Contains("OldRCUFormat"))
333 dc.SetOldRCUFormat(kTRUE);
335 dc.SetOldRCUFormat(kFALSE);
337 dc.SubtractPedestals(fgkRecoParamEmc->SubtractPedestals());
339 TClonesArray *digits = new TClonesArray("AliPHOSDigit",1);
340 digits->SetName("DIGITS");
341 Int_t bufsize = 32000;
342 digitsTree->Branch("PHOS", &digits, bufsize);
344 AliPHOSRawDigiProducer pr;
345 pr.MakeDigits(digits,&dc);
348 for(Int_t i=0; i<digits->GetEntries(); i++) {
349 AliPHOSDigit* digit = (AliPHOSDigit*)digits->At(i);
350 digit->SetEnergy(digit->GetEnergy()/AliPHOSPulseGenerator::GeV2ADC());
361 for(Int_t iDigit=0; iDigit<digits->GetEntries(); iDigit++) {
362 AliPHOSDigit* digit = (AliPHOSDigit*)digits->At(iDigit);
363 if(digit->GetEnergy()>eMax) {
364 fGeom->AbsToRelNumbering(digit->GetId(),relId);
365 eMax=digit->GetEnergy();
372 AliDebug(1,Form("Digit with max. energy: modMax %d colMax %d rowMax %d eMax %f\n\n",
373 modMax,colMax,rowMax,eMax));